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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HIVE-10493) Merge multiple joins when join keys are the same
Date Mon, 27 Apr 2015 23:23:38 GMT

     [ https://issues.apache.org/jira/browse/HIVE-10493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jesus Camacho Rodriguez resolved HIVE-10493.
--------------------------------------------
    Resolution: Duplicate

> Merge multiple joins when join keys are the same
> ------------------------------------------------
>
>                 Key: HIVE-10493
>                 URL: https://issues.apache.org/jira/browse/HIVE-10493
>             Project: Hive
>          Issue Type: Sub-task
>          Components: CBO
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>             Fix For: 1.2.0
>
>
> CBO return path: auto_join3.q is joined on the same key from 3 sources. It is translated
into 2 map joins. Need to merge them into a single one.



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